• 제목/요약/키워드: data heterogeneity

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아토피 피부염에서 한약 외용제와 양약 병용 치료의 효과: 체계적 문헌고찰 및 메타분석 (Efficacy of Combination Treatment of Herbal Medicine for External Use and Western Medicine for Atopic Dermatitis: A Systematic Review and Meta Analysis)

  • 이지은;박수진;전서연;김규석
    • 대한융합한의학회지
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    • 제5권1호
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    • pp.5-23
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    • 2023
  • Objectives: This study was conducted to evaluate the effect of combination treatment of herbal medicine for external use and western medicine for atopic dermatitis (AD). Methods: We searched randomized controlled trials (RCTs) which assess the effect of combination treatment of herbal and western medicine for AD through 8 electronic databases from the start to December 2022. The data synthesis was conducted by using Review Manager (RevMan, ver.5.4.1) and Cochrane risk-of-bias tool was used to evaluate the risk of bias. Results: 13 RCTs were included. The combination treatment group had significantly higher total efficacy rate(p<0.0001) and lower SCORAD score (p<0.00001) than the western medicine treatment group. The adverse event rate was also significantly lower in the combination treatment than the western medicine treatment group (p<0.0001). But there was no significant difference in recurrence rate (p=0.09). Conclusion: This study demonstrates that the combination treatment of herbal and western medicine could be safe and effective for AD. However, due to limits of included studies such as high heterogeneity between the literature and unclear risk of bias, further studies are warranted.

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우리나라 제조업 기업의 수출중단 결정요인 분석 (Determinants of a Firm's Exit from Exporting: Evidence from Korean Manufacturing Firms)

  • 남윤미;최문정
    • 경제분석
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    • 제26권4호
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    • pp.98-136
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    • 2020
  • 본 연구는 2006~2014년 통계청의 기업활동조사 자료를 이용하여 우리나라 제조업 기업의 수출중단 결정요인을 실증적으로 분석하였다. 이를 위해 생존분석 기법인 Complementary Log-Log 모형을 통해 우리나라 제조업 수출기업의 수출중단 가능성에 기업 및 산업 특성과 거시경제 변수들이 미치는 영향을 추정하였다. 분석결과, 기업 특성인 고용규모, 자본집약도, 무형자산 소유여부, 외국인 소유여부와 산업 특성인 신규기업의 고용대체율 등이 수출중단 가능성에 유의한 영향을 미치며, 거시변수 중 세계수요 증가, 국내수요 감소가 수출기업의 수출중단 가능성을 유의하게 감소시키는 반면, 환율의 영향은 유의하지 않은 것으로 추정되었다. 또한, 시장금리가 상승하면 금융시장 자금조달여건이 불리해짐에 따라 수출기업의 수출중단 가능성이 커지며, 부채비율이 높은 기업이 이러한 금융여건의 영향을 더욱 크게 받는 것으로 나타났다. 한편, 수출 주력산업인 경우 생산성이 높을수록 수출기업의 수출 중단 가능성이 감소하는 것으로 분석되었다. 본 연구결과는 기업 및 산업 특성과 거시 실물 변수 및 금융여건이 수출중단에 복합적으로 영향을 미치고 있음을 보여준다. 또한, 수출 주력산업 내 기업들의 생산성 제고와 기업의 재무건전성 향상이 수출기업들의 수출중단 가능성을 감소시키는 방향으로 작용할 수 있음을 시사한다.

Antimicrobial Activity of Propolis Extract and Their Application as a Natural Preservative in Livestock Products: A Meta-Analysis

  • Andre, Andre;Arief, Irma Isnafia;Apriantini, Astari;Jayanegara, Anuraga;Budiman, Cahyo
    • 한국축산식품학회지
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    • 제42권2호
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    • pp.280-294
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    • 2022
  • This study aimed to evaluate the effectiveness of propolis extract as a natural preservative for livestock products in term of chemical and microbiological characteristics by meta-analysis. The stages carried out in this study were identification, selection, checking suitability, and the resulting selected articles were used in the meta-analysis. The selection results obtained a total of 22 selected journal articles consisting of 9 articles for analysis of the antimicrobial activity of propolis extract and 13 articles for analysis of the chemical and mirobiological characteristics of livestock products. The articles were obtained from electronic databases, namely Science Direct and Google Scholar. The model used in this study is the random-effect model involving two groups, control and experimental. Heterogeneity and effect size values were carried out in this study using Hedge's obtained through openMEE software. Forest plot tests and data validation on publication bias was obtained using Kendall's test throught JASP 0.14.1 software. The results showed that there is a significant relationship between propolis extract with the results of the antimicrobial activity (p<0.05). In addition, the results of the application of propolis extract on the livestock products for the test microbes and the value of thiobarbituric acid reactive substances (TBARs) showed significant results (p<0.05). Conclusion based on the random-effect model on the effectiveness of antimicrobial activity of propolis extract and their apllication as a natural preservative of the chemical and microbiological characteristics of livestock products is valid by Kendall's test (p>0.05). Propolis in this case effectively used as natural preservatives in livestock products.

A Critical Systematic Review for Inhaled Corticosteroids on Lung Cancer Incidence: Not Yet Concluded Story

  • Suh-Young Lee;Soon Ho Yoon;Hyunsook Hong
    • Tuberculosis and Respiratory Diseases
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    • 제86권2호
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    • pp.120-132
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    • 2023
  • Background: To systematically review studies on inhaled corticosteroids (ICS) and lung cancer incidence in chronic airway disease patients. Methods: We conducted electronic bibliographic searches on OVID-MEDLINE, EMBASE, and the Cochrane Database before May 2020 to identify relevant studies. Detailed data on the study population, exposure, and outcome domains were reviewed. Results: Of 4,058 screened publications, 13 eligible studies in adults with chronic obstructive pulmonary disease (COPD) or asthma evaluated lung cancer incidence after ICS exposure. Pooled hazard ratio and odds ratio for developing lung cancer in ICS exposure were 0.81 (95% confidence interval, 0.64 to 1.02; I2=95.7%) from 10 studies and 1.02 (95% confidence interval 0.50 to 2.07; I2=94.7%) from three studies. Meta-regression failed to explain the substantial heterogeneity of pooled estimates. COPD and asthma were variously defined without spirometry in 11 studies. Regarding exposure assessment, three and 10 studies regarded ICS exposure as a time-dependent and fixed variable, respectively. Some studies assessed ICS use for the entire study period, whereas others assessed ICS use for 6 months to 2 years within or before study entry. Smoking was adjusted in four studies, and only four studies introduced 1 to 2 latency years in their main or subgroup analysis. Conclusion: Studies published to date on ICS and lung cancer incidence had heterogeneous study populations, exposures, and outcome assessments, limiting the generation of a pooled conclusion. The beneficial effect of ICS on lung cancer incidence has not yet been established, and understanding the heterogeneities will help future researchers to establish robust evidence on ICS and lung cancer incidence.

Movie Choice under Joint Decision: Reassessment of Online WOM Effect

  • Kim, Youngju;Kim, Jaehwan
    • Asia Marketing Journal
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    • 제15권1호
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    • pp.155-168
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    • 2013
  • This study describes consumers' movie choices in conjunction with other group members and attempts to reassess the effect of the online word of mouth (WOM) source in a joint decision context. The tendency of many people to go to movies in groups has been mentioned in previous literature but there is no modeling research that studies movie choice from the group decision perspective. We found that ignoring the group movie-going perspective can result in a misunderstanding, especially underestimation of genre preference and the impact of the WOM variables. Most of the studies to measure online WOM effects were done at the aggregate level, and the role of online WOM variables(volume vs valence) is mixed in the literature. We postulate that group-level analysis might offer insight to resolve these mixed understanding of WOM effects in the literature. We implemented the study via a random effect model with group-level heterogeneity. Romance, drama, and action were selected as genre variables; valence and volume were selected as online WOM variables. A choice-based conjoint survey was used for data collection and the models was estimated via Bayesian MCMC method. The empirical results show that (i) both genre and online WOM are important variables when consumers choose movies, especially as group, and (ii) the WOM valence effect are amplified more than the volume effect does as individuals are engaged in group decision. This research contributes to the literature in several ways. First, we investigate movie choice from a group movie-going perspective that is more realistic and consistent with the market behavior. Secondly, the study sheds new light on the WOM effect. At group-level, both valence and volume significantly affect movie choices, which adds to the understanding of the role of online WOM in consumers' movie choice.

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Reference values for pulp oxygen saturation as a diagnostic tool in endodontics: a systematic review and meta-analysis

  • Paula Lambert;Sergio Augusto Quevedo Miguens Jr;Caroline Solda;Juliana Tomaz Sganzerla;Leandro Azambuja Reichert;Carlos Estrela;Fernando Branco Barletta
    • Restorative Dentistry and Endodontics
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    • 제45권4호
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    • pp.48.1-48.11
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    • 2020
  • Objectives: This systematic review aimed to identify mean oxygen saturation values (SpO2) using pulse oximetry in permanent maxillary anterior teeth. Materials and Methods: The MEDLINE, Scientific Electronic Library Online, Cochrane Central Register of Controlled Trials, EMBASE, and Literatura Latino Americana em Ciências da Saúde electronic databases were searched. Combinations and variations of "oximetry" AND "dental pulp test" were used as search terms. Studies reporting means and standard deviations of SpO2 values were included. Two reviewers independently extracted data following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses checklist. Heterogeneity was assessed using the I2 statistic, and all analyses were performed using R software. Study quality was assessed using the Quality Assessment of Diagnostic Accuracy Studies-2 tool and the Newcastle-Ottawa scale. Results: Of the 251 studies identified, 19 met the eligibility criteria and were included (total sample, 4,541 teeth). In the meta-analysis, the mean SpO2 values were 84.94% (95% confidence interval [CI], 84.85%-85.04%) for the central incisors, 89.29% (95% CI, 89.22%-89.35%) for the lateral incisors, and 89.20% (95% CI, 89.05%-89.34%) for the canines. The studies were predominantly low-quality due to the high risk of bias associated with the index test, unclear risk regarding patient selection, and concerns about outcome assessment. Conclusions: Although most studies were low-quality, the oxygen saturation levels in normal pulp could be established (minimum saturation, 77.52%). Despite the risk of bias of the included studies, the reference values reported herein are clinically relevant for assessments of changes in pulp status.

소아 일과성 고관절 활액막염에 대한 한약의 효과: 체계적 문헌 고찰 및 메타분석 (Effect of Herbal Medicine on Transient Synovitis of Hip in Children: A Systemic Review and Meta-analysis )

  • 홍예나;이영훈;유선애
    • 대한한방소아과학회지
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    • 제37권4호
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    • pp.34-52
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    • 2023
  • Objective This study aimed to evaluate the effect of herbal medicines on transient hip synovitis (TSH) in children. Methods We searched 10 Korean, English, Japanese, and Chinese databases for studies published up to September 19, 2023. Randomized controlled trials (RCTs) evaluating the effect of herbal medicines on TSH levels in children were included. The Cochrane risk of bias was used to evaluate the quality of the studies. A meta-analysis was conducted according to outcome measurements, such as total effective rate (TER), visual analog score (VAS), time to pain relief, and hip joint mobility disorder disappearance time, using the Review Manager website. Results Eleven RCTs were included in this study. TER in the treatment group was significantly higher than in the control group. The duration of pain relief was significantly shorter in the treatment group than in the control group. The VAS score of the treatment group was significantly lower than that of the control group, although the statistical heterogeneity was substantial. The hip joint mobility disorder disappeared in the treatment group treated with external therapy, which was significantly shorter than in the control group. Regarding safety, two of the 11 studies reported that there were no adverse events. Conclusions Herbal medicines are effective in the treatment of TSH in children. However, the safety of herbal medicines should be carefully considered due to the lack of data.

Comparison of Effectiveness of Manual Therapy for Infant Crying: systematic review and meta-analysis of randomized controlled trials

  • Ui Jin Park;Hye In Jeong;Kyeong Han Kim
    • 대한약침학회지
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    • 제26권4호
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    • pp.285-297
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    • 2023
  • Objectives: The aim of this systematic review and meta-analysis is to assess and compare the effectiveness of manual therapy in alleviating infant crying, a common symptom of nocturnal crying (NC) and infantile colic (IC). Methods: Total effective rate, crying time and adverse events were used as outcome indicators. To assess the quality, the risk of bias was determined for each study by two authors, using the Cochrane Collaboration's risk of bias tool. RevMan 5.0 was used for data analysis. A total of 98 articles were identified from 6 electronic databases. Results: Among them, twenty-seven studies which included 13 NC and 14 IC were included. Meta-analysis showed favorable effects tuina therapy on total effective rate (TER) of NC (RR: 1.20 [95% CI 1.05 to 1.37], p = 0.007), chiropractic therapy on crying time change of IC (SMD: -0.83 [95% CI -1.61 to -0.06], p = 0.04) and massage on total crying time of IC (SMD: -0.86 [95% CI -1.09 to -0.63], p < 0.00001). This systematic review compares different manual therapies for the treatment of NC and IC. While tuina, chiropractic, and massage show results in alleviating symptoms, the overall evidence remains limited due to the low quality and heterogeneity of the included studies. Conclusion: Therefore, further high-quality research with unified control groups is needed to establish manual therapy as a recommended treatment option for NC and IC. Protocol registration number is CRD42022348143 01/08/2022.

간호·간병통합서비스병동 간호사의 업무 적응 경험 (Experience of Adaptation to Work In Comprehensive Nursing Service Units of Nurses)

  • 박수현;원서현;김보선;양진향;허선혜
    • 문화기술의 융합
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    • 제10권3호
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    • pp.69-88
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    • 2024
  • 본 연구는 간호·간병통합서비스병동 간호사의 업무 적응 경험을 심층적으로 파악하기 위해 현상학적 방법으로 시행되었다. 본 연구의 자료수집 기간은 2023년 11월~2024년 1월까지였으며, 일반 병동과 간호·간병통합서비스병동에서 각각 6개월 이상의 업무 경험이 있는 간호사를 대상으로 심층 면담이 이루어졌다. 심층 면담 시 녹음한 파일은 모두 전사 후 Giorgi의 현상학적 방법으로 분석하였다. 분석결과, 5개의 구성요소와 14개의 하위 구성요소가 도출되었으며 구성요소는 '변화된 업무 환경을 마주침', '예상하지 못했던 업무의 이질감', '당면한 현실을 평가함', '전략을 찾아 균형을 도모함', '전문직 간호사로 성장함'으로 나타났다. 이러한 연구결과를 바탕으로 간호·간병통합서비스병동 간호사가 업무에 적응할 수 있는 시스템을 구축하고 역량 강화를 위한 프로그램을 지속적으로 개발할 필요가 있다.

Efficacy, immunogenicity, and safety of COVID-19 vaccines in individuals with liver cirrhosis: a rapid review and meta-analysis

  • Faranak Salajegheh;Mohammad Rezaei Zadeh Rukerd;Mohsen Nakhaie;Zohreh-Al-Sadat Ghoreshi;Javad Charostad;Nasir Arefinia
    • Clinical and Experimental Vaccine Research
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    • 제13권2호
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    • pp.83-90
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    • 2024
  • The emergence of coronavirus disease 2019 (COVID-19) vaccines has been a remarkable advancement. However, the efficacy, immunogenicity, and safety of these vaccines in individuals with liver cirrhosis require careful evaluation due to their compromised immune status and potential interactions with underlying liver disease. The present study aimed to evaluate the safety and efficacy of COVID-19 vaccines in liver cirrhosis patients. In the present study, we searched international databases, including Google Scholar, PubMed, Scopus, Embase, and Web of Science. The search strategy was carried out by using keywords and MeSH (Medical Subject Headings) terms. STATA ver. 15.0 (Stata Corp., USA) was used to analyze the data statistically. The analysis was performed using the randomeffects model. We also used the chi-square test and I2 index to calculate heterogeneity among studies. For evaluating publication bias, Begg's funnel plots and Egger's tests were used. A total of 4,831 liver cirrhosis patients with COVID-19 were examined from 11 studies. The rate of hospitalization in the patients with liver cirrhosis was 17.6% (95% confidence interval [CI], 9%-44%). The rate of fever in the patients with liver cirrhosis was 4.5% (95% CI, 0.9%-8.1%). The rate of positive neutralizing antibodies in the patients with liver cirrhosis was 82.5% (95% CI, 69.8%-95.1%). Also, the rates of seroconversion after the second vaccination in patients with liver cirrhosis and the control group were 96.6% (95% CI, 92.0%-99.0%), and 99.7% (95% CI, 99.0%-100.0%), respectively. COVID-19 vaccines have demonstrated promising efficacy, immunogenicity, and safety profiles in individuals with liver cirrhosis, providing crucial protection against COVID-19-related complications.